/Engine/Source/Runtime/Engine/Classes/Components/TimelineComponent.h
Add a float interpolation to the timeline
void AddInterpFloat ( [UCurveFloat](API\Runtime\Engine\Curves\UCurveFloat) * FloatCurve, [FOnTimelineFloat](API\Runtime\Engine\Components\FOnTimelineFloat) InterpFunc, [FName](API\Runtime\Core\UObject\FName) PropertyName, [FName](API\Runtime\Core\UObject\FName) TrackName )